1 ; RUN: llc -regalloc=fast -optimize-regalloc=0 -verify-machineinstrs < %s 2 target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64" 3 target triple = "x86_64-apple-darwin" 4 5 ; This test causes a virtual FP register to be redefined while it is live: 6 ;BB#5: derived from LLVM BB %bb10 7 ; Predecessors according to CFG: BB#4 BB#5 8 ; %reg1024<def> = MOV_Fp8080 %reg1034 9 ; %reg1025<def> = MUL_Fp80m32 %reg1024, %RIP, 1, %reg0, <cp#0>, %reg0; mem:LD4[ConstantPool] 10 ; %reg1034<def> = MOV_Fp8080 %reg1025 11 ; FP_REG_KILL %FP0<imp-def>, %FP1<imp-def>, %FP2<imp-def>, %FP3<imp-def>, %FP4<imp-def>, %FP5<imp-def>, %FP6<imp-def> 12 ; JMP_4 <BB#5> 13 ; Successors according to CFG: BB#5 14 ; 15 ; The X86FP pass needs good kill flags, like on %FP0 representing %reg1034: 16 ;BB#5: derived from LLVM BB %bb10 17 ; Predecessors according to CFG: BB#4 BB#5 18 ; %FP0<def> = LD_Fp80m <fi#3>, 1, %reg0, 0, %reg0; mem:LD10[FixedStack3](align=4) 19 ; %FP1<def> = MOV_Fp8080 %FP0<kill> 20 ; %FP2<def> = MUL_Fp80m32 %FP1, %RIP, 1, %reg0, <cp#0>, %reg0; mem:LD4[ConstantPool] 21 ; %FP0<def> = MOV_Fp8080 %FP2 22 ; ST_FpP80m <fi#3>, 1, %reg0, 0, %reg0, %FP0<kill>; mem:ST10[FixedStack3](align=4) 23 ; ST_FpP80m <fi#4>, 1, %reg0, 0, %reg0, %FP1<kill>; mem:ST10[FixedStack4](align=4) 24 ; ST_FpP80m <fi#5>, 1, %reg0, 0, %reg0, %FP2<kill>; mem:ST10[FixedStack5](align=4) 25 ; FP_REG_KILL %FP0<imp-def>, %FP1<imp-def>, %FP2<imp-def>, %FP3<imp-def>, %FP4<imp-def>, %FP5<imp-def>, %FP6<imp-def> 26 ; JMP_4 <BB#5> 27 ; Successors according to CFG: BB#5 28 29 define fastcc i32 @sqlite3AtoF(i8* %z, double* nocapture %pResult) nounwind ssp { 30 entry: 31 br i1 undef, label %bb2, label %bb1.i.i 32 33 bb1.i.i: ; preds = %entry 34 unreachable 35 36 bb2: ; preds = %entry 37 br i1 undef, label %isdigit339.exit11.preheader, label %bb13 38 39 isdigit339.exit11.preheader: ; preds = %bb2 40 br i1 undef, label %bb12, label %bb10 41 42 bb10: ; preds = %bb10, %isdigit339.exit11.preheader 43 %divisor.041 = phi x86_fp80 [ %0, %bb10 ], [ 0xK3FFF8000000000000000, %isdigit339.exit11.preheader ] ; <x86_fp80> [#uses=1] 44 %0 = fmul x86_fp80 %divisor.041, 0xK4002A000000000000000 ; <x86_fp80> [#uses=2] 45 br i1 false, label %bb12, label %bb10 46 47 bb12: ; preds = %bb10, %isdigit339.exit11.preheader 48 %divisor.0.lcssa = phi x86_fp80 [ 0xK3FFF8000000000000000, %isdigit339.exit11.preheader ], [ %0, %bb10 ] ; <x86_fp80> [#uses=0] 49 br label %bb13 50 51 bb13: ; preds = %bb12, %bb2 52 br i1 undef, label %bb34, label %bb36 53 54 bb34: ; preds = %bb13 55 br label %bb36 56 57 bb36: ; preds = %bb34, %bb13 58 ret i32 undef 59 } 60
